In modern automobiles, the convenience of raising or lowering power windows is facilitated by buttons located near the seats or on the interior of the doors. However, the specific operation of these buttons varies among car manufacturers, with some employing single-press actions or requiring users to hold down the buttons for continuous operation.
The mechanism responsible for driving the power windows up or down is equipped with multiple magnets or a multi-pole ring magnet.
These magnets actuate a reed sensor positioned in close proximity, providing crucial feedback to the vehicle’s microprocessor regarding the precise position of the glass.
Regardless of whether the power windows are being raised or lowered, the reed sensor consistently emits a fixed number of pulses, serving as a reference point for the microprocessor to halt the motor’s operation once the window reaches its fully raised or lowered position.
The feedback provided by the reed sensors enables the microprocessor to detect any potential obstructions during the power window’s ascent. By continuously monitoring the timing between pulses, the system can promptly identify anomalies and prevent accidents or damage caused by obstructions.
In addition to facilitating the movement of the power windows, reed sensors also serve as an integral safety device in this process. Their role extends beyond mere operation, ensuring that window control remains both efficient and secure. Through the seamless integration of reed sensor technology, modern automobiles achieve not only enhanced convenience but also heightened safety standards, providing drivers and passengers with peace of mind on the road.
🧰 Application Classification
Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.
✅ Recommended Products
The Reed Switches and Sensors used in this power window application need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.
